"('1234') brought me two days ago to Sesame Street and it was the Muppets and it was the best day of my life. I'm sorry Junos, but the Muppets trump everything!"

The Feist clip will air during the launch of Sesame Street's 39th season on August 11, which will also feature guest appearances by Jessica Alba, David Beckham, Heidi Klum and Neil Patrick Harris.

The original version of "1234", which was co-written by Australian artist New Buffalo, became a worldwide hit last year and was featured in an iPod Nano commercial.

Feist won five awards at the Junos and was also nominated for four Grammys.

She joins a long list of innovative musicians who've appeared on the long-running children's show, including Jonathan Richman, Philip Glass and REM, who redid their hit "Shiny Happy People" as "Furry Happy Monsters".